my name is philip. and I'm from Ghana.

Dear, it's possible to do so. You can go to the exit and entry administration of the local PSB to change tourist L type to study X type. You need to provide the required materials containing your passport and its photocopy, the temporary accommodation registration form, the application form with a recent bareheaded color photo glued, the offer from the education institutions in PRC, and application form JW201/JW202 as well as other relevant documents required by the exit and entry administration.